I have a GH1 and was going to trade it for a GH2. Then I read about the G3 and wanted that one. Then I read about the GF3, which has all led to mass confusion on my part. What seems to be the difference between the G3 and GF3, other than broader ISO range? Is the GF3 going to be substantially smaller than the G3? The models seem to overlap tremendously? What is Panasonic thinking? If I don't really shoot much video at all, which model should I purchase and why? So far, I have the 40-140, 20mm 1.7 and 45mm 2.8 macro lenses. Any thoughts are appreciated!